Guangdong Communication Polytechnic

Communication, China

Guangdong Communication Polytechnic

Communication, China
Time filter
Source Type

Cao C.,Guangdong Communication Polytechnic | Cui F.,Guangdong Communication Polytechnic | Xu L.,South China University of Technology
Journal of Computational and Theoretical Nanoscience | Year: 2016

With the development of computer technology, the advantages of cloud computing, such as high scalability and high availability, provide a good solution to the problem of mass data in modern traffic management. In view of the problem of urban traffic area linkage control, this paper studies the decision analysis method based on the cloud computing model, and forms a systematic dynamic coordination of regional traffic and intersection signal control strategy. Considering the relationship between the adjacent green signal ratio and the traffic flow, the author try to optimize the traffic signal light timing scheme, then make construction of adaptive linkage control and strengthen the traffic control and guidance. Through the simulation and analysis of the strategy under different conditions, the experimental results show that the proposed scheme is superior in performance and has a good application prospects. Copyright © 2016 American Scientific Publishers All rights reserved.

Liu S.,South China University of Technology | Liu S.,South China Normal University | Qi D.,South China University of Technology | Meng J.,Guangdong Communication Polytechnic | Liu B.,Guangdong University of Technology
International Journal of Digital Content Technology and its Applications | Year: 2012

Wireless sensor networks (WSNs) are usually deployed in the non-controlled environment without maintenance, facing the danger of information disclosure, tampering, replay attacks, denial of service and other threats, it makes collaboration among WSN nodes becomes more and more vital. Some common trust collaboration model is analyzed and summarized in this paper firstly, after studying the collaboration of the ant colony system, the trust model based on Biologically-inspired Trust and Reputation Model (BTRM) used for wireless sensor networks is put forward, also the features and architecture of the simulation system is proposed. This paper describes BTRM theory and the design and implementation of simulation system in detail. The simulation shows the output average path length, the average satisfaction, the average deviation and so on is more satisfied with the improvements.

Huang H.Y.,Guangzhou University | Zhang J.P.,Guangdong Communication Polytechnic | Xu W.X.,Guangzhou University | Huang D.Z.,Guangzhou University
IOP Conference Series: Earth and Environmental Science | Year: 2017

The overload and overweight operations of vehicles in expressway are particularly serious in China recently. Research on the extreme maximum value of the vehicle loads is an urgent problem in the bridge design. On the basis of statistical analysis of the WIM data from Yu-Zhan Expressway under toll-by-weight mode in Guangdong Province, the POT probability model of gross weight of the vehicle was established by the extreme value theory. It can predict the probability distribution of operating vehicle loads in any recurrence period. Results showed that the overweight vehicles were not accidental, and there may be heavier vehicles in the future. It is necessary to improve and modify the current toll-by-weight charging policy. © Published under licence by IOP Publishing Ltd.

Yu M.,Guangdong Communication Polytechnic | Wang G.,Guangdong Communication Polytechnic
Advances in Intelligent Systems and Computing | Year: 2018

Cable defect magnetic flux leakage non-destructive testing system is designed according to the characteristics of cable-stayed bridge cable nondestructive testing. The measured results show that the defects of the magnetic flux leakage signals are often accompanied by a lot of noise signals, which leads to signal characteristics no significant. In filtering signal algorithm, first to do the smoothing and filtering processes, then to obtain the signal by characteristic differential of limitation after quantization process characteristic, at least to acquire the object internal defects by the BP neural network. Simulation results show that after dealing with the filtering algorithm of magnetic flux leakage signal characteristics significantly, which provides a reliable basis for the nondestructive testing and analysis of the bridge cable wire brake defect. © 2018, Springer International Publishing AG.

Cai P.,Guangdong Communication Polytechnic | Tu J.,Guangdong Communication Polytechnic
Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and Engineering) | Year: 2014

For the effective deployment of empty container in port, in order to improve the utilization efficiency of container leasing company, and to obtain good economic benefit, this paper constructs the three game model of empty containers scheduling in port, and carried on the empirical analysis to obtain: under the unified dispatching of ports (empty container has allocated between ports) and under separate scheduling (empty container has allocated between ports under the company headquarters to establish between the ports of transshipment price) of the two kinds of scheduling policy has the same operation results in five kinds of scheduling policy. Dispatching them in five strategy is optimal, which can get the company overall minimum container stock, the overall effect of maximum profit.

Jiang Y.,Guangdong Communication Polytechnic | Wang J.,Guangdong Communication Polytechnic
Modern Tunnelling Technology | Year: 2013

At present, the seismic coefficient method is often adopted in the aseismic design of most shield tunnels in China. In this paper, the response displacement method is introduced to calculate the increments of internal force in a lining under seismic loading, while the internal force in a lining under normal conditions is calculated by taking into account the crown pressure and the pore water pressure. Then, by means of the superposition of the above two kind of forces, the total internal force in the lining under seismic loading is obtained, and the aseismic design of a shield tunnel is conducted based on all these factors. Compared with the calculation results of the finite element method and the seismic coefficient method, it shows that the response displacement method can be applied to the lining strength calculations for the aseismic design of shield tunnels and the major positive internal force and negative internal force would emerge every 30° starting from the vertical axis under seismic loading, which requires special consideration in the aseismic design of a tunnel cross section.

Xu K.Y.,Guangdong Communication Polytechnic
Applied Mechanics and Materials | Year: 2014

Earthquake is a kind of natural disaster which is difficult to predict and the damage degree is very great, occurrence of the strong motion often leads to the tremendous life and property loss. Bridge is very important lifeline engineering and it is very necessary to conduct the comprehensive and systemic investigation on the bridge aseismic. In this paper, the FEM model of a long-span cable-bridge was established; the dynamic characteristic and nonlinear seismic responses under uniform and non-uniform excitations of it were systematic studied. The results show that: 1) the basic cycle of it is about 8.881s. Its first mode of vibration is longitudinal floating mode, which is favorable to the earthquake- response of structures. 2) Its former 40 rank frequency are located between 0.1~2Hz which is avail to the condition of traffic condition.3) the geometric nonlinearity has much influence on the response of this kind of bridge.4) the seismic responses are sensitive to the frequency spectra of the input earthquake wave. 5) The traveling wave excitations are unfavorable to the design of tower and the main girder when considering the three orthogonal seismic wave input. In order to get correct results, artificial seismic wave of the bridge address is necessary to the time-history analysis. © (2014) Trans Tech Publications, Switzerland.

Li Y.,Jinan University | Qi P.,Guangdong Communication Polytechnic | Ma X.,Jinan University | Zhong J.,Jinan University
European Food Research and Technology | Year: 2014

Clenbuterol hydrochloride (CLB) is a kind of lean meat powder which can increase the conversion rate of lean meat. Though it is allowed in human and veterinary medicine, CLB is harmful for human body and, therefore, is restricted to its use as a growth promoter. In this paper, a quick detection technique for clenbuterol hydrochloride is proposed. The technique, which is based on surface plasmon resonance (SPR) and immune reaction, includes two methods, the direct method and the suppression method. The direct method can be applied, to screen an antibody and in the study of the dynamic reaction. For the immune suppression method, the concentration of CLB is inversely proportional to the change of SPR angle. The detection limit of this method is smaller than 2 μg/L, and the pork extraction is detected. The concentration of CLB in the sample is 2.75 μg/L, and the concentration of antibody is 250 μg/L. The detection of CLB by SPR is quick, highly sensitive, and label free. And the utilized equipment is cheap, simple, environmental friendly, and easy to control. The proposed technique could achieve the real-time detection of a large number of samples and be widely used to detect CLB in all fields of food processing. Therefore, this method is expected to be used in the inspection process for foods in the supermarket, bazaar, and factory. © 2014 Springer-Verlag Berlin Heidelberg.

Li Y.,Jinan University | Ma X.,Jinan University | Zhao M.,Jinan University | Qi P.,Guangdong Communication Polytechnic | Zhong J.,Jinan University
PLoS ONE | Year: 2014

Coumaphos is a common organophosphorus pesticide used in agricultural products. It is harmful to human health and has a strictly stipulated maximum residue limit (MRL) on fruits and vegetables. Currently existing methods for detection are complex in execution, require expensive tools and are time consuming and labor intensive. The surface plasmon resonance method has been widely used in biomedicine and many other fields. This study discusses a detection method based on surface plasmon resonance in organophosphorus pesticide residues. As an alternative solution, this study proposes a method to detect Coumaphos. The method, which is based on surface plasmon resonance (SPR) and immune reaction, belongs to the suppression method. A group of samples of Coumaphos was detected by this method. The concentrations of Coumaphos in the samples were 0 μg/L, 50 μg/L, 100 μg/L, 300 μg/L, 500 μg/L, 1000 μg/L, 3000 μg/L and 5000 μg/L, respectively. Through detecting a group of samples, the process of kinetic reactions was analyzed and the corresponding standard curve was obtained. The sensibility is less than 25 μg/L, conforming to the standard of the MRL of Coumaphos stipulated by China. This method is label-free, using an unpurified single antibody only and can continuously test at least 80 groups of samples continuously. It has high sensitivity and specificity. The required equipments are simple, environmental friendly and easy to control. So this method is promised for a large number of samples quick detection on spot and for application prospects. © 2014 Li et al.

Xu K.,Guangdong Communication Polytechnic | Zhong J.,Guangdong Communication Polytechnic
Wuhan Ligong Daxue Xuebao (Jiaotong Kexue Yu Gongcheng Ban)/Journal of Wuhan University of Technology (Transportation Science and Engineering) | Year: 2015

Combined with practical engineering, through computational analysis, the reason for the disease of simply supported T beam bridge are conducted in-depth discussion and analysis, specific measures are proposed to deal with the reinforcement design, and strengthening the efficiency of the programs, construction safety, cost, etc. were demonstrated. The optimal solution is obtained. ©, 2015, Wuhan University of Technology. All right reserved.

Loading Guangdong Communication Polytechnic collaborators
Loading Guangdong Communication Polytechnic collaborators